Did anyone ever try to get this working?
I've assembled a breadboard 18F4550 circuit that matches the schematic and am using AN0 for the thermistor. The display is on Port D/E and works perfectly. Oh, and I picked up a 1% 10K resistor as per the recommendation.
However, I get seemingly random numbers on the display.
One thing I'm a little unclear about...I know the T25 value for my thermistor (it's 10K) and I know the Beta (it's 3892). The constants in the listing don't seem to bear much resemblance to any real-world T25 or Beta, unless I'm missing something:
Code: Select all
Const T25Val = 0.0033540 // Thermistor's t25 value
Const ThermistorBVal = 1.0 / 3489.0 // Thermistor's B value
Any help with this or Thermistors in SF would be greatly appreciated
TIA,
-marc